Solar cell device and manufacturing method therefor

摘要

A solar cell device including an electrode formed by applying a conductive paste containing at least a conductive powder, glass frit and an organic vehicle onto a semiconductor substrate provided with a silicon nitride layer on a surface thereof and firing the applied conductive paste, wherein the electrode has a structure with a front electrode layer containing silver as a main component, a glass layer containing tellurium glass as a main component, and a silicon oxide layer containing plural silver particles precipitated by the firing. The solar cell device is provided with an electrode formed using a conductive paste not containing lead glass and has good solar cell characteristics.

主权项

1. A solar cell device including a front electrode formed by applying a conductive paste containing a conductive powder comprising silver as a main component, tellurium glass frit containing 30 to 90 mol % of tellurium oxide and an organic vehicle onto a semiconductor substrate having a silicon nitride layer provided on a surface thereof and firing the applied conductive paste, wherein the organic vehicle is removed during the firing and the front electrode has a structure comprising an electrode layer containing silver from the conductive powder as a main component, a glass layer containing tellurium glass formed from the glass frit as a main component and a silicon oxide layer containing silver particles precipitated by the firing from the conductive powder.